7Semi DC Buck Converter Breakout 3.3V 2A Out (AP62301) (BO-10131) The 7Semi DC Buck Converter Breakout 3.3V 2A Out (AP62301) is a compact power module that converts higher DC voltages into a stable 3.3V output with up to 2A current. It accepts a wide range of input voltages, making it useful for powering low-voltage electronics from batteries, adapters, and other DC sources. This makes it ideal for projects that require a reliable 3.3V supply. Built using an efficient synchronous buck converter design, this board delivers dependable power with minimal energy loss and low heat output. The small form factor allows easy integration into your electronics builds, especially space-constrained and portable systems. Whether you’re working on IoT devices, embedded controllers, or sensor systems, this converter provides a simple and efficient power solution for your 3.3V needs. Features: Provides a stable 3.3V output with up to 2A continuous current Accepts a wide DC input voltage range for flexible power sources High-efficiency synchronous buck converter design Low heat generation for efficient and safe power delivery Compact breakout board for easy integration and prototyping Ideal for IoT devices, embedded systems, and battery-powered projects Suitable for powering microcontrollers, sensors, and communication modules

7Semi DC Buck Converter Breakout 3.8V 2A Out (AP62301) (BO-10132) The 7Semi DC Buck Converter Breakout 3.8V 2A Out (AP62301) (BO-10132) is a compact power module designed to step down higher DC voltages to a stable 3.8V output with up to 2A current. It supports a wide input voltage range, making it suitable for use with batteries, adapters, and other DC power sources in low-voltage electronics. Built on an efficient synchronous buck converter design, this module delivers reliable power with minimal heat and energy loss. Its small size makes it ideal for space-constrained projects such as IoT devices, embedded systems, and portable electronics. Whether you’re prototyping or building a final product, this buck converter offers a simple and dependable power solution. Features: Provides stable 3.8V output at up to 2A continuous current Accepts a wide DC input range for flexible power sources High-efficiency synchronous buck converter design Low heat generation for efficient power use Compact breakout board for easy integration Ideal for IoT, battery-powered, and embedded electronics Suitable for microcontrollers, sensors, and small devices

7Semi DC Buck Converter Breakout 5V 2A Out (AP62301) (BO-10133) The 7Semi DC Buck Converter Breakout 5V 2A Out (AP62301) is a small power module that converts higher DC input voltages into a steady 5V output with up to 2A current. It allows you to power 5V-based electronics from a wide range of DC power sources such as batteries and adapters. This makes it perfect for projects that need a reliable 5V supply. Built with an efficient synchronous buck converter design, this module delivers stable power while keeping energy loss and heat to a minimum. Its compact size makes it easy to add to space-limited electronics projects like IoT devices, microcontroller boards, and portable systems. Whether you’re building sensors, development boards, or embedded systems, this buck converter gives you a simple and dependable way to get 5V power. Features: Provides a stable 5V output with up to 2A continuous current Accepts a wide range of DC input voltages for flexible power sources Efficient synchronous buck converter design for low power loss Low heat generation for cool and reliable operation Compact breakout board for easy integration and prototyping Ideal for powering 5V microcontrollers, sensors, and IoT devices Perfect for embedded systems, portable electronics, and hobby projects

7Semi DC-DC Buck Converter 7V-40V Input to 5V 5A Output- AP64500 (BO-10188) The 7Semi DC-DC Buck Converter 7V–40V Input to 5V 5A Output – AP64500 (BO-10188) is a high-power voltage regulator module designed to convert higher DC input voltages into a stable 5V output with up to 5A current. Its wide input range makes it suitable for many power sources, including batteries and industrial supplies, where reliable 5V power is needed. Built around the efficient AP64500 synchronous buck converter, this module delivers stable output with low heat and high efficiency, even under heavy load. It is well suited for powering microcontrollers, single-board computers, sensors, and communication modules. Whether you’re building robotics, automation systems, or advanced electronics projects, this buck converter provides dependable and efficient power management. Features: Wide input voltage range: 7V to 40V DC Stable 5V output with up to 5A continuous current High-efficiency synchronous buck converter using AP64500 Low thermal loss and reliable performance under load Compact breakout module for easy project integration Built-in power protection features for safe operation Ideal for microcontrollers, SBCs, IoT and embedded systems Suitable for robotics, automation, and power supply projects

7Semi DC-DC Buck Converter 14V-60V Input to 5V 3A Output- AP66300 (BO-10189) The 7Semi DC-DC Buck Converter 14V–60V Input to 5V 3A Output – AP66300 (BO-10189) is a compact power module designed to convert high DC input voltages into a stable 5V output with up to 3A current. Its wide input range makes it suitable for applications that use automotive, industrial, or high-voltage power sources. Built on an efficient synchronous buck design, this converter delivers reliable power with low heat generation and minimal energy loss. It is well suited for powering microcontrollers, sensors, communication modules, and other embedded electronics. Whether you’re working on industrial systems, automation projects, or advanced DIY builds, this buck converter provides a dependable and efficient power solution. Features: Wide input range: accepts 14V to 60V DC sources Provides a stable 5V output at up to 3A High-efficiency buck converter design for low energy loss Compact breakout board for easy project use Built-in power protection for safer operation Ideal for automotive, industrial, and embedded electronics Supports powering microcontrollers, sensors, and communication modules Efficient solution for IoT, automation, and high-voltage systems

7Semi DC-DC Buck Converter 5V 3A Out - MP2338 (BO-10182) The 7Semi DC-DC Buck Converter 5V 3A Out – MP2338 (BO-10182) is a compact power module designed to step down higher DC voltages to a stable 5V output with up to 3A current. It provides reliable and efficient power for electronics that require a steady 5V supply, such as microcontrollers, sensors, and development boards. Built around the MP2338 step-down converter, this module offers high efficiency and stable performance while minimizing heat and power loss. It supports a wide input voltage range and includes built-in protection features for safe operation. Whether you’re working on embedded systems, IoT devices, or custom electronics projects, this buck converter makes power management simple and dependable. Features: Boosts power efficiency with a high-performance MP2338 buck converter Provides a stable 5V output at up to 3A for reliable powering Wide input voltage range, compatible with various DC sources Compact breakout module for easy PCB or project integration Built-in protection features for safe and stable operation Ideal for microcontrollers, sensors, IoT boards, and embedded systems

7Semi TPS631000 DC-DC Buck Boost Converter 1.6V-5.5V In 3.3V 1.5A Out The 7Semi TPS631000 DC-DC Buck Boost Converter is a versatile and efficient DC-DC Buck Boost Converter module designed to deliver a stable 3.3V output at up to 1.5A from input voltages ranging between 1.6V and 5.5V. Whether your voltage source is above or below 3.3V, this converter ensures a reliable and consistent power supply, solving the common challenge of fluctuating input voltages in battery-powered and embedded systems. This compact module uses the high-performance TPS631000 controller to provide efficient power conversion with minimal loss, making it ideal for microcontrollers, sensors, communication modules, and portable electronics. Its broad input range and stable output make it perfect for students, hobbyists, and professionals working on IoT devices, robotics, wearables, and other projects that require dependable 3.3V power under varying supply conditions. Features: Wide 1.6V–5.5V input range, compatible with batteries and varied power sources Adjustable output voltage from 1.2V to 5.3V for flexible designs High output capability: up to 2A (VIN ≥ 3V) and 1.5A (VIN ≥ 2.7V) with 3A peak switch current Ultra-low 8 µA quiescent current for excellent energy efficiency Automatic buck, boost, and buck-boost mode switching for stable output Compact, reliable design ideal for space-constrained and precision applications

DFRobot 20W DC-DC Buck Converter Power Module 7-24V to 5V 4A The DFRobot 20W DC-DC converter is a high-efficiency buck converter module that steps down 7–24V input to a stable 5V/4A output, ideal for powering high-current devices. With 6 onboard output ports, it can simultaneously power components like servo motors, programmable LED strips, and robotic arms. The module features durable ceramic chip capacitors and a large inductor to reduce heat, making it a reliable 5V power supply for robotics, automation systems, and DIY electronics projects.

DFRobot 5A DC-DC Buck Boost Converter Module The DC-DC Buck Boost Converter Module (5A) is a versatile power supply solution that can both step up and step down voltage as needed. With an input voltage range of 5V to 32V and adjustable output from 1V to 30V, this module handles a wide variety of power conversion needs for your electronics projects. The converter delivers a stable 5A continuous output current with excellent voltage regulation, making it ideal for powering microcontrollers, sensors, motors, and other devices that require consistent power. The module features synchronous rectification technology that achieves high efficiency up to 95%, reducing energy waste and heat generation during operation. This Buck Boost Converter Module comes with comprehensive protection mechanisms to safeguard your valuable electronics. It includes over-temperature protection, input under-voltage protection, and output over-current protection, ensuring safe and reliable operation even under challenging conditions. The module is designed with user-friendly features like an onboard potentiometer for easy voltage adjustment and an LED indicator that shows working status. With its compact size of 55×38×15mm and pre-soldered 2.54mm pin headers, this converter module is perfect for students and hobbyists working with Arduino boards, Raspberry Pi, robotics projects, or any application requiring stable and adjustable power supply. Pinout Details Input+ Input- Output+ Output- Output Indicator Output Voltage Regulation Features Input voltage range: 5V to 32V DC Output voltage range: 1V to 30V DC (adjustable via potentiometer) Maximum output current: 5A continuous Conversion efficiency: Up to 95% with synchronous rectification Built-in protection: Over-temperature, input under-voltage, output over-current Compact dimensions: 55×38×15mm with mounting holes Operating temperature range: -40°C to +85°C Applications Industrial Power Supply DIY Smart Power Supply Embedded System Power Supply

DFRobot Gravity Tipping Bucket Rainfall Sensor - I2C & UART The DFRobot Gravity Tipping Bucket Rainfall Sensor is a reliable and convenient tool designed for precise rainfall measurement in various applications. Based on the tipping bucket rainfall principle, this rainfall measurement sensor provides accurate precipitation data in millimeters along with system operating time information. What makes this sensor particularly effective is its thoughtful design - it contains no electronic components inside the measurement mechanism and features a hollow bottom that allows rainwater to automatically drain away. These design choices significantly enhance the stability and sensitivity of the sensor, making it ideal for continuous outdoor monitoring in weather stations, environmental research, or agricultural applications. This versatile tipping bucket rain gauge supports both I2C and UART data outputs, making it compatible with a wide range of popular platforms including micro:bit, Arduino, ESP32, and Raspberry Pi. Setting up a complete rain monitoring system is straightforward thanks to the integrated easy-to-use Gravity interface and the provided ready-to-go libraries. The Arduino rainfall detector works by collecting rainwater through its top inlet, which then flows into the tipping bucket through a funnel. When sufficient water accumulates, the bucket tips over, generating a pulse signal that allows the controller to calculate rainfall amount. This reliable mechanism makes the sensor perfect for delivering high-quality rainfall data for weather station equipment setups, environmental monitoring stations, or smart farming applications. Note: The signal adapter board is not waterproof. Do not expose the signal adapter board to rain. Features Working voltage range of 3.3V to 5.5V DC for flexible power options. Low current consumption of less than 3mA for efficient operation. Precise measurement resolution of 0.28mm for accurate rainfall data. Wide operating temperature range from -40°C to 85°C for all-weather use. Tipping bucket size: 118mm × 59mm × 80mm for effective rain collection. Signal adapter board dimensions: 32mm × 37mm for compact installation. Includes rainfall sensor, signal adapter, and Gravity 4-pin connection cable. Circuit Diagram of Gravity Tipping Bucket Rainfall Sensor and Arduino Uno